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Finding the Fourth Proportional to 571,691.40, 857,537.10 and 197,752.20

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Solution

The fourth proportional to 571,691.40, 857,537.10 and 197,752.20 is: 296,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,691.40 : 857,537.10 = 197,752.20 : x
  2. Step 2: Convert to fraction form
    571,691.40/857,537.10 = 197,752.20/x
  3. Step 3: Cross multiply
    571,691.40x = 857,537.10 × 197,752.20
  4. Step 4: Simplify right side
    571,691.40x = 169,579,848,106.62
  5. Step 5: Solve for x
    x = 169,579,848,106.62/571,691.40
  6. Step 6: Final answer
    x = 296,628.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.